[dllthomas]

Not that it takes anything away from your point, but to be slightly more precise, the content should (probably, see below) be treated as immutable. The metadata, included in the same files, is mutable - things like status, related ADRs, superseding PRS, etc.

Above I said probably - I'm not sure that we shouldn't allow editing when it's purely clarification, communicating more clearly what it already communicated to most of the audience.

An append-only section for adding further observations, as the decision plays itself out, is also an interesting option, although I don't know whether it would actually be more valuable than distracting.